People, for the most part, are not playing with their software because they want to. They’re using the software as a tool to accomplish something else that they would like to do. Maybe they are using a chat program to try and seem witty, in hopes that the person they are chatting with will want to spend time with them, so that, ultimately, they have a better chance of getting laid, so that, ultimately, their selfish DNA will get to replicate itself. Maybe they are using a spreadsheet to try and figure out if they can afford a bigger apartment, so that, ultimately, dates will be more impressed when they come over, increasing their chance of getting laid, again, benefitting the DNA. Maybe they’re working on a PowerPoint for the boss so that they will get a promotion so that they’ll have more money which they can use to rent a larger apartment that would attract mates, thus increasing their chance of getting laid, (getting the idea yet?) so the selfish DNA can replicate. Maybe they are looking for a recipe for goat cheese ravioli on the Internet, etc., etc., … DNA.
If you’re using the term simplicity to mean “grace and economy” or “elegance,” that’s terrific. A great example of this is the difference between the way you search for music on Rhapsody and the way you search for music on iTunes. Rhapsody makes you decide if you want to search for albums, tracks, or artists. iTunes doesn’t give you any choice: it just searches all fields, which works just as well and is easier. Economy means power, in this case, and it’s a feature.
On the other hand, if you’re using simplicity to mean a lack of power, a lack of features, that’s fine, if you want to be in the paper clip business, good luck with that, but the chances that your product will solve my exact problems starts to shrink and your potential market share does, too.